package site.codeyin.javautils.utils;

import com.jthinking.common.util.ip.IPInfo;
import com.jthinking.common.util.ip.IPInfoUtils;

import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;

/**
 * 网络工具类
 *
 * @author <a href="https://github.com/liangcheng2221">yinjie</a>
 */
public class NetUtils {

    /**
     * 获取客户端 IP 地址
     *
     * @param request servlet请求对象
     * @return 返回客户端的IP地址
     */
    public static String getIpAddress(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if (ip == null || ip.isEmpty() || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.isEmpty() || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.isEmpty() || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
            if (ip.equals("127.0.0.1")) {
                // 根据网卡取本机配置的 IP
                InetAddress inet = null;
                try {
                    inet = InetAddress.getLocalHost();
                } catch (Exception e) {
                    e.printStackTrace();
                }
                if (inet != null) {
                    ip = inet.getHostAddress();
                }
            }
        }
        // 多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
        if (ip != null && ip.length() > 15) {
            if (ip.indexOf(",") > 0) {
                ip = ip.substring(0, ip.indexOf(","));
            }
        }
        if (ip == null) {
            return "127.0.0.1";
        }
        return ip;
    }

    /**
     * 获取用户的所在国家
     *
     * @param request servlet请求对象
     * @return 返回客户端的真实Ip地址
     */
    public static String getCountryByIp(HttpServletRequest request) {
        String ipAddress = getIpAddress(request);
        IPInfo ipInfo = IPInfoUtils.getIpInfo(ipAddress);
        return ipInfo.getCountry();
    }

    /**
     * 获取用户的所在城市
     *
     * @param request servlet请求对象
     * @return 返回客户端的真实Ip地址
     */
    public static String getProvinceByIp(HttpServletRequest request) {
        String ipAddress = getIpAddress(request);
        IPInfo ipInfo = IPInfoUtils.getIpInfo(ipAddress);
        return ipInfo.getProvince();
    }

    /**
     * 获取用户的所在详细地址
     *
     * @param request servlet请求对象
     * @return 返回客户端的真实Ip地址
     */
    public static String getAddressByIp(HttpServletRequest request) {
        String ipAddress = getIpAddress(request);
        IPInfo ipInfo = IPInfoUtils.getIpInfo(ipAddress);
        return ipInfo.getAddress();
    }

    public static void main(String[] args) {
        IPInfo ipInfo = IPInfoUtils.getIpInfo("127.0.0.1");
        String country = ipInfo.getCountry();
        String province = ipInfo.getProvince();
        String address = ipInfo.getAddress();
        String isp = ipInfo.getIsp();
        boolean overseas = ipInfo.isOverseas();
        double lat = ipInfo.getLat();
        double lng = ipInfo.getLng();

        System.out.println("country: "+country);
        System.out.println("province: "+province);
        System.out.println("address: "+address);
        System.out.println("isp: "+isp);
        System.out.println("overseas: "+overseas);
        System.out.println("lat: "+lat);
        System.out.println("lng: "+lng);


    }

}